Gate.



GATE. APPLIO'ATION HILED JULY 17,1907.

PATENTED MAY 5, 1908; I J. w. ROBINSON.

3 SHEETS-SHEET 1.

f/VVE/VTOR I PATENTED MAY 5 1908.

J. w. ROBINSON.

GATE.

PL 0 T ONPIL DJ'UL 1=1 07. H I A I E Y 9 SSHEETS-SHEET 2.

WITNESSES:

Affomey I P TENTED M51808. J. w-. ROBINSON. A M

GATE

APPLIOA IION TILED JULY l7, 1907.

3 SHEBTS-EHEET 3.

m E. MN

WITNESSES Af/omey JOHN W. ROBINSON, OF MORRILLTON, ARKANSAS.

GATE.

Specification of Letters Patent.

Patented May 5, 1908.

Application filed July 17, 1907. Serial No. 384,164.

To all whom it may concern:

Be it known that I, JOHN W. ROBINSON, a citizen of the United States, residing at Morrillton, in the county of Conway, State of Arkansas, have invented certain new and useful Improvements in Gates; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention has reference to improvements in gates, and more particularly to centrally pivoted gates, and it aims to provide an exceedingly simple gate of that class which may be automatically opened and closed by the passage of vehicles over the operating trips, or may be operated manually by a pedestrian or by a person on horse-back, the operating cables being connected both to the above-mentioned trips and to hand-operated levers.

\Vith the above and other ends in view the invention consists in the particular construction, combination and arrangement of parts all as hereinafter fully described, specifically claimed, and illustrated in the accompanying drawings in which like parts are designated by corresponding reference numerals in the several views.

Of the said drawings, Figure 1 is a front elevation of the gate and its operating mechanism, Fig. 2 is a side elevation thereof, Fig. 3 is a top plan view, Fig. 4 is a side elevation of the gate in its open position, Fig. 5 is a detail view of the latch mechanism, Fig. 6 is a perspective view of one of the trips.

Referring more particularly to the drawings, the numeral 1 designates the gate which is provided with a central pivot-bar 2 whose lower end fits in a bearing formed in a beam 3 which is embedded transversely of the I road, while its upper end carries a vertical pin bolt 4 which projects through an opening formed centrally in a second cross-beam 5 which is secured at its ends to the upper ends of a pair of braced standards 6 and 7, disposed upon opposite sides of the road, the cross-beam being elevated sufficiently above the road to render it unnecessary for the driver or rider to stoop while passing through the gate.

Disposed on each side of the gate and arranged at the desired distance therefrom, on opposite sides of the road are a lever 8 and a post 9, the lever and post on one side of the gate being arranged in alinement with the post and lever upon the opposite side, as shown. Each post is mounted upon a baseplate 10 which is embedded in the ground, while each lever is pivoted at its lower end in a rectangular casing or box 11 which is mounted on a similar base-plate 12 likewise sunken.

The pivot-bar 2 has rigidly secured thereto adjacent the cross-beam 5 the inner ends of a pair of oppositely-disposed cables 14 and 15, the former of which is given one turn there around and is then led towards the upper end of the right-hand standard 6, whence it passes around a pulley 16 carried by said standard adjacent its upper end; the cable is then led downward and secured at its outer end to an eye bolt carried by the right-hand lever 8 on the far side of the gate. The cable 15 is led in the opposite direction, or

towards the left-hand standard 7, is passed around a similarly disposed pulley 17 carried thereby, and is finally secured at its outer end to an eye bolt set into the rear face of the left-hand lever 8. A third cable 18 is also secured at one end to the pivot-bar, is wound once therearound, and is fastened at its opposite end to one end of a retractile coil-spring 19 whose other end is made fast to an eye bolt set into the left-hand standard 7.

Each of the base-plates 12 upon which the levers are mounted, is provided in addition, with a U-shaped trip 20, the out-turned ends of whose arms are pivotally connected with the plates, the outer arm of each trip terminating in an upward extension 21 which is disposed adjacent the outer face of the corresponding lever, the upper end of each extension having an eye formed thereon to which the adjacent end of a supplemental cable 22 is made fast, the opposite end of each of said cables being secured to the corresponding cable 14 or 15.

The gate is closed by the passage of the wheels of a wagon over either of the trips 20, according as the wagon approaches the gate from one side or the other, the trips being normally-disposed at a slight angle to the surface of the road, to permit their depression by the wagon Wheels. The gate may also be closed by the manual actuation of either of the levers 8 which are of sufficient height to enable them to be operated by a rider Without rendering it necessary for him to dismount.

When the gate is swung into its closed position by either of the means aboveadjacent the corresponding post 9, the

opposite ends of the cables being connected together and to a supplemental cable 31 which passes over a pair of pulleys carried by the standard 6 and cross-beam 26 and is fastened to the free end of the latch to move the latter against the beveled side face of the cross-beam. The cable 28, in its passage to the supplemental cable 31, is led from the left-hand post 9 towards the left-hand standard 7, and through a series of pulleys 32 carried by the cross-beam 5, while the cable 27 is led from the righthand post towards the corresponding standard, through the pulley 16 carried thereby, and is secured to the depending end of the cable 28 and to the adjacent end of the cable 31.

It will thus be apparent that when a wagon approaches the gate from one side or the other, its wheels will ass over and depress the adjacent trip 30, t us tensioning the corresponding cable 27 or 28 and releasing the latch from engagement with the latch pin 24:, whereu on the gate will automatically open under t 1e action of the spring 19, the movement of the gate being checked by its contact with a post 23, which is set in the road on the near side of the gate. The wagon then passes through the gate, and continues its travel until its wheels depress the corresponding second trip 20, whereupon the gate will be swung into closed position and its latch-pin automatically engaged with the spring latch.

In order to permit the gate to be opened by a pedestrian or horseback rider, the cables 27 and 28, which may be regarded as the gateopening or latch-releasing cables are each provided with a supplemental cable 38 which is connected thereto at one end and passes over a pulley 34 carried by the corresponding post 9. The action of the last-mentioned cables is exactly that of the main cables 27 and 28, and further description thereof is, therefore, deemed unnecessary.

While the gate-closing cables 14 and 15 have been shown and described as directly connected to the levers 8 and the supplemental cables 22 to the trips 20, it will be apparent that the first-mentioned cables may be directly connected to the trips and the supplemental cables to the levers.

In approaching the gate from either side the vehicle, rider, or pedestrian, must keep to the right as will be obvious.

Modifications and changes may obviously be made within the scope of the appended claims, as the invention is not intended to be limited to the exact details of construction shown and described.

l/Vhat is claimed, is,

1. The combination, with a pair of spaced standards, and a cross-beam connecting the upper ends of the same, of a swinging gate provided with a central pivot-bar having its upper end fitted in an opening in said crossbeam; a spring-latch carried by one of said standards and adapted for engagement with the gate, when the latter is closed; a pair of rocking devices arranged upon each side of the gate; a cable connection between one member of eachpair of rocking devices and said latch, for releasing the latter from engagement with the gate; a separate cable wound around the pivot-bar and secured at one end thereto; a coil-spring secured at opposite ends to the other end of the last-mentioned cable and to the other standard, for causing the gate to open automatically, when the latch is released from engagement therewith; and a cable connection between each of the other rocking devices and said pivotbar, for returning the gate to closed position against the action of said s ring.

2. The combination, wit a pair of spaced standards, and a cross-beam connecting the upper ends of the same, of a swinging gate provided with a central pivot-bar having its upper end fitted in an opening in said crossbeam; a beveled cross-beam secured to one of said standards; a perforated spring-latch carried by said beveled cross-beam; a pin carried by one of the end bars of the gate and adapted for engagement in the perforation in said latch, when the gate is in closed position; a pair of rocking devices disposed upon each side of the gate; a cable connection between one member of each pair of rocking devices and said latch, for releasing the latter from engagement with said pin; a separate cable wound around the pivot-bar and secured at one end thereto; a coil-spring secured at opposite ends to the other ends of the last-mentioned cable and to the other standard for causing the gate to open automatically, when said latch is released from engagement with said pin; and a cable connection'between JOHN W. ROBINSON. I

Witnesses:

WEST DEAN, JOHN O. ALLEN. 

